US1270751A - Combined type-writing and computing machine. - Google Patents

Description

' e 0. DEGENER.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED NOV. 29;

Patented June 25, 1918.

2 SNEETS-SHEET 1.

G. 0 DEGENER.

COMBINED TYPE WRiTlNG AND COIflPUHNG MACHIHE.

APPLICATION FILED NOV. 29. 19.12.

WITNESSEfi: {QTM Patented June 25, 1918 2 SHEETSSHEET 2.

UNITED STATES PATENT OFFICE.

GUSTAVE O. DEGENER, OF NEW YORK, N. Y., ASSIGNOR TO UNDERWOOD COMPUTING MACHINE COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

COMBINED TYPE-WRITING AND COMPUTING MACHINE.

Specification of Letters Patent.

Patented June 25, 1918.

Application filed November 29, 1912. Serial No. 733,948.

To all whom it may concern:

Be it known that I, Gus'rnvn O. Dncn- Run, a citizen of the United. States, residing in New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Combined Type-\Vriting and Computing Machines, of which the following is a specification.

My invention relates to combined typewriting and computing machines, broadly of the type disclosed in the co-pending application of Valter Wright, No. 5,030, filed March 22, 1909.

One object of the present invention is to reduce the wear and noise incident to the returning of the carriage at the beginning of a new line in such combined machines.

In said application, the computing wheels are power-driven and the movements of said wheels are controlled by means of escapement mechanism operated by the keys. The connection between the numeral keys and said escapement mechanism is automatically established at intervals by means of hooks, which may be swung to engage said numeral keys, and when so swung the numeral key, when operated, will draw its hook to swing a bell crank, which bell crank in turn operates said escapement mechanism. A handle is shown by which automatic means for connecting the numeral keys to the computing wheels by said hooks may be manually set to effective or ineffective position.

According to the present invention, as herein disclosed, the connection between the numeral keys and the computing device may be automatically made by means of a series of tappets settable along the typewriter carriage, which tappets are arranged to suecessively swing a controlling arm, which arm operates said automatic connection. Said controlling arm, may comprise cam surfaces which may be successively engaged by said tappets so as to swing said controlling arm.

The principal feature of the present 111- vention is directed to silencing the mechanism of this general character during the return movement of the carriage when it is moved back to begin a new line of writin To thus silence the controlling arm, a bar may be arranged on the typewriter carriage adjacent said tappets in such a way that whenever the line-space mechanism of the typewriter is operated, as is customary in returning the carriage of the typewriter, said bar will swing the controlling arm free of said tappets. In this way any vibration of said controlling arm during the return movement of the carriage is avoided and the computing mechanism remains quiet and free from noise during said return.

Other features and advantages will hercinafter appear.

In the accompanying drawings,

Figure 1 is a perspective view of so much of the parts of an Underwood-IV 'ight combined typewriting and computing machine as is necessary to illustrate my invention.

Fig. 2 is a rear View on an enlarged scale of the controlling arm.

Fig. 3 is a plan view, showing the relation of the bar to the controlling arm which it swings.

Fig. 4: is a front view of the controlling arm showing the typewriter keys connected to compute.

Fig, 5 is a view similar to Fig. 4, but showing the keys disconnected.

In the Underwood typewriter, numeral keys 1 swing type bars, not shown, to write on a platen, not shown, mounted in a traveling carriage comprising .a rack bar 2, which carriage is fed along a letter-space at a time by the operation of the typewriter keys. Said carriage may be also'positioned by means of decimal tabulator keys 3 operating plungers 4c in a casing 55, so as to raise said plungers into the path of stops 6 on the rack bar 2, while at the same time said carriage is freed from its escapement mechanism, not shown, so that the carriage is drawn along by a spring barrel, not shown,

of a book 7, of which there is one for each numeral key, which hooks are arranged to be swung under elbows S on each numeral key lever, so that when a numeral key lever is depressed, its hook will be drawn downward, thereby swinging a bell crank 9 so as to draw on a link 10 and swing an elbow lever 11 to cause a jack 12 to project a pin 13 in a primary escapement wheel 14. The pin projected determines the number which is to be carried into the computing device.

Said escapement wheel is constantly under torque tending to turn it by. means of a motor, not shown, and is held against so being turned by means of a previouslyv projected pin 15, which has been intercepted by a tooth16 of a star wheel fast on a shaft 17, which star wheel is prevented from turning by means of a tooth 18 bearing against a dog 19.

z. With the depression of a numeral key, the elbow lever 11 swings a universal disk 20 so as to cause said universal disk, by connections not shown herein, to swing the dog 19 to-the left, as shown in Fig. 1, so that the tooth 18 slips off-of said dog and is held by a second dog 21 fast to said first dog. On

the return stroke of the numeral key, the

dogs 19 and 21 are rocked back to their normal position, inwhich position the tooth 18 will be free from the dog 21, and said wheel will be turned by the pin 15 till a second tooth-18 on said wheel strikes the dog 19 thus bringing another tooth 16 of the star wheel into the path of the pin 13, which has been just projected.

The primary escapement wheel 14 is caused to carry into a computing wheel the number thus recorded in it and it turns said wheel until the projectedpin 13 is arrested by striking the tooth 16. In the meantime, the pin 15, which had been holding the wheel, has been returned from its projected position by means of a cam, shown herein.

With the parts positioned, as in Figs. 1

not

"and 5, the hooks 7 are swung so as to be clear ofthe elbows 8, and they are held in such position by means of a manually operated disconnecting device comprising a bar 22, through which all the hooks 7 extend loosely, saidbar being held in position by means of a lever-23 pivoted at 24. Said lever is held in position by means of a spring 25 drawing on a link 26 pivoted on one arm 27 of a cross, which cross is pivoted at on the frame of the machine. Said bar 22 may be caused to swing said hooks 7 to a point (Fig. 4) adjacent and beneath the elbows 8 by swinging a handle 28 pivoted on an arm 29 of the aforesaid cross, so that its pivot pin 32 en gages the lever 23, said handle comprising a slot 30 in which works a pin 31 on the link 26. Thus, if said handle 28 is thrown to the right, as viewed in Fig. 1, or to the left, as seen in Fig. 5 it will turn on its pivot and slide the pin 31 in the slot 30 as the handle goes downward against the tension of the spring 25 until said handle passes the dead center, at. which point the spring 25 will draw the handle 28 upward on the opposite side of dead center, and hold said handle so positioned. The spring 25 is anchored pref erably in the handle 28 rather than in the link 26 itself.

As said handle 28 turns around, it holds the lever 23 to the arm 29 of the cross by means of a pin 32 forming an extension of said handle and riding in a slot 33 formed within the upper end of said lever.

Vith the handle 28 moved to the Fig. 1 and '5 position, as just described, so that the hooks .7 are clear of the elbows, the typewriter carriage may be caused to automatically move said hooks under said elbows so as to connect the computing device to the numeral keys. For this purpose, the stops 6 on the typewriter comprise extensions 34 forming tappets which are arranged to operate a controlling arm 35 pivoted in brackets 37, on the tabulatorcasing' 5 and fast on a rock arm 36. Said controlling arm by means of its rock arm 36, draws a link 38 upward when the .arm is swung by its tappets, so as to draw a rock arm 39 upward fast on a rock shaft 40 carrying a rock arm 41, by which lastnamed rock arm alink 42, extending to an arm 43 of the above-named cross, draws down said arm 43, and thereby pulls the bar 22 so as to swing the hooks 7 under the elbows 8.

The controlling arm 35 is operated by the tappets 34 by means of adjustable cams 44 and 45 held to said bar by means of screws 46 passing through slots 47 in said cams. Said cams form a continuous face, and by adjusting said 'cams by means of their screws and slots, the extent of said face can be varied.

The controlling arm 35 is arranged to be swung so as to carry its cams 44 and 45 free of the tappets every time the typewriter carriage is returned toithe beginning of ,a new line. For this purpose, the line-space lever 48 of the ordinary Underwood typewriter machine is employed which operates the usual slide 49 against the tension of a spring 50 for driving the line-space pawl, not shown herein,

In the present invention, said slide 49 includes a nose 51 which strikes an abutment 52so that, when the line-space lever 48 is operated, said abutmentwill move the bar of which it forms a part and swing a deflector bar 54 pivotally attached to said bar 53 so that its edge will strike an upward extension 55 of the controller arm 35. I This swings said controller arm rearwardly out of the path of the tappets 34 and prevents any jarring of the parts by said tappets during the movement of the carriage.

The extension 55 is in the form of a plate fast on the cam I L having an upward extension 56 from which projects a horizontal portion 57 carrying a lip 58 at the front thereof adjacent said deflector bar at. Said deflector bar is supported on pillars 59, one at each end of the rack bar 2, and the deflector bar 54 has slots 60 which embrace narrow portions at the upper ends of said pillars 59, and screws 61 extend over the edges of said slots and are threaded into said pillars 59 so as to guide the deflector bar. The slots 60, it will be seen, are arranged diagonally and the bar 53, which swings the deflector bar 54:, is attached thereto by means of a pivot 62 and is guided by means of a slot 63 in the cover 64: of the line-space mechanism in such a way as to allow some swinging of the bar 53. The abutment 52 of said bar 53 is made broad enough so that the nose 51 will not slip past said bar during the slight turning movement due to the operation of the deflector bar 54:.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. In a combined typewriting and computing machine, the combination with numeral keys and a-computing device, of a traveling carriage, a tappet on said carriage, an arm moved by said tappet to control the connections between said keys and computing device, means for returning the carriage having a movement relatively to the carriage, and means for positively moving said arm out of the path of said tappetby said carriage returning'means.

2-. Ina combined typewriting and computing machine, the combination witlr'nume'ral keys and a computing device, of a traveling carriage, a line-space lever for said carriage, a tappet on said carriage, an arm moved by said tappet to control the connection be tween said keys and computing device, and means moved with said line-space lever for moving said arm out of the path of said tappet.

8. In a combined typewriting and computing machine, the combination with numeral keys and a computing device, of'a traveling carriage, a tappet on said carriage, an arm operable by said tappet adjacent to said carriage and relatively to which it travels, a deflector bar on said carriage and extending throughout the length of the carriage travel so as to cotiperate with said tappet in any position thereof, and means for moving said deflector bar to swing said arm clear of said tappet during thejreturn movement of said carriage.

i. In a combined typewriting and computing machine, the combination with numeral keys and a computing device, of a traveling carr age, an arm moved by said traveling carriage for altering the relation of said numeral keys to said computing device, a linespace lever for said carriage, and means operated by said line-space lever for causing said arm to remain quiet during the return motion of said carriage.

5. In a combined typewriting and computing machine, the combination with numeral keys and a computing device, of a traveling carriage, tabulator stops controlling said carriage, means controlled by said stops for also altering the relationship between said numeral keys and said computing device during a portion of the letter-feeding of said carriage, means having movement relatively to the carriage for returning the same, and means for rendering said stops ineflective to alter the relationship between the keys and the computing device during return movement of said carriage, brought into action by said carriage returning means during said relative movement thereof.

6. In a combined typewriting and computing machine, the combination with numeral keys and a computing device, of a traveling carriage, an arm adjacent said carriage, means carried by the carriage for normally operating said arm at a plurality of points in the carriage travel, a deflector bar extending the length of the carriage travel, means having movement relatively to the carriage for returning the same, and means to move said deflector bar to swing said arm clear of its operating means during the return movement of said carriage, brought into action by said carriage returning means ing machine, the combination with a traveling carriage, of-a line-space lever for said carriage, a slide swung by said lever, a bar moved by said slide, a deflector bar on which said bar is pivoted, a casing for said linespacing slide comprising an opening through which said bar extends, a rack bar on said carriage, and guides on said rack bar on which said deflector bar moves by slots on said deflector bar.

8. In a combined typewriting and computing machine, the combination with numeral keys and a computing device, of a traveling carriage, a line-space lever for said traveling carriage, a deflector bar on said traveling carriage having diagonal slots. a slide operated by said line-space lever for moving said deflector bar, a pivoted member by which it so moves said bar, and a spring for returning said line-space slide.

9. In a combined typewriting and computing machine, the combination with numeral keys and a computing device, of a traveling carriage, a rack bar on said carriage having toothless ends, pillars on said toothless ends, and a deflector bar sliding on said pillars.

10. In a combinedtypewriting and computing machine, the combination with Knumeral keys and a computing device, of a traveling carriage, means for returning said carriage, said aneans having, a movement relatively to the carriage,- a tappetomsaid carriage,-. an arm moved by saidtappet to control the connectionsbetween-said keys and the computing -device,;an d means moved by said carriage-returni-ng 'means during said ,relative movement thereof for moving said arm out of thepath of-said tappet.

11. In a combined .typewriting and computing machine, the combination with, numeral keys and a computing idevice, of a traveling carriage, an armnioved by said carriage for altering the relation of said keys to said computing device, a carriagereturn-ing lever 1 having "a movement relatively to the carriage, a deflectonbalw-on said carriage, andimeans toenable saidlever during said relativemovement toanovesaid bar to carry Y-said arm to ineficctiveposition sothat. it cannot alterthc relation ofisaid numeral keys to said computingdevice.

12. In a combined typewriting and computing machine, thelcombination with numeral keys and a computing device, of a traveling carriage, an arm 'IIIOVGClbysaid traveling carriage to vary the relation, of said keys to said device, a carriage-returning lever having a movement relatively vto the carriage, and meansmoved by-said lever during said relative movement to forcibly maintain said arm in one position,,to maintain-the relation of saidkeys to 5,2tld- GO111 puting device unchanged during the travel of the carriage.

13. The combination with a carriage having thereon a series of projectiona ofia cam device operable by any of-said projections during the movement of-the carriagein letter-feeding direction, acarriagemeturning. handle having a movement relativelyto the carriage, and a means connected to, said handle and operated during the.vrelative movement thereof to.=shiftsaid cam device out of range of said projeotionsduringthe return of said carriage.

'14. In a typewriting machine, the combination'of a carriage and a'handle to return the same-having a movement relatively to the carriage, a shifter-onsaid carriage movable by said handle during said relative movement, and a cam device ontt e framework of the typewriting machineon ,vvhich thecarriage is normally efi'ective but movable to position clear of said carriage by saidshifter.

.15. The combination ofacarriaga-alseries of projections, at camcdeviee engageablel by 'the projections while the: carriage moves n said cam.

17. ,In a combined typewriting and computing machine, the combination with a carriage, computing mechanism and numeral keys, ,of .tappets on said carriage, means controlled by said tappets for connecting said keys to ,said computing mechanism and a line-space lever also controlling said connecting ,means.

lS In, a combinedtypewriting and computing machine, the combination with a le =.ver:;operated bar having, diagonal slots, of numeral keys, computing mechanism, a connection, between saidkeys and mechanism controlled .by said bar, and pins working in .lsaidv slots to guide, said bar.

19.111 a combined typewriting and com puting machine, they combination with numeral keys' and a computing device, of a traveling carriage,.an arm moved by said travel ng carr age for altering the relatlon ,of said numeral keys to said computing device means for returning the carriage to normal position, said means having a movement relatively to the carr iage, 'and .means operated} by said "returning 7 means during relative movement thereof for causngasald, arm toi remain 11111613 during the return =mot1on of sald carriage.

2( In acombined typewriting and computmg ma ch ng-the combination with numeral..keys (and a computing device, of a traveling carriage, a tappet on said earriage,

an arm moved by said tappet to alter the re- ..lation between said keys and computingdevice, a carriage-returning lever for returningsaid carriage, vandmeans connected to said, levervfor positively moving said arm out of the path-of said tappet during the returntmovement of said? carriage.

2 1. In avcomblned typewriting and comput ng mach1ne, the comb nation w th numeral keys and a computing device,.of a ,traveling, carriage, connections between the keysg and thecomputing device adapted to be. vcontrolled by said carriage a plurality of times during a single traverse thereof,

means for, returning the carriage, said means hav ng a; movement relatively thereto, and

means for rendering said connections ineffective by said carriage during the return movement thereof by said returning means.

22. The combination with a swinging frame, of a traveling typewriter carriage, two cam plates on sand frame, a tappet on said carriage effective on said cam plates, means for effecting relative adjustment of said plates to lengthen or shorten the cam,

a shifter bar to carry said plates clear of said tappet, and an arm on said frame form ing part of one of said plates for engagement with said shifter bar.

GUSTAVE O. DEGENER.

Witnesses:

D. L. BAYLIs, SAMUEL J. PUTNAM.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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